Abstract: Exemplary subpixel structures include a directional light-emitting diode structure characterized by a full-width-half-maximum (FWHM) of emitted light having a divergence angle of less than or about 10°. The subpixel structure further includes a lens positioned a first distance from the light-emitting diode structure, where the lens is shaped to focus the emitted light from the light-emitting diode structure. The subpixel structure still further includes a patterned light absorption barrier positioned a second distance from the lens. The patterned light absorption barrier defines an opening in the barrier, and the focal point of the light focused by the lens is positioned within the opening. The subpixels structures may be incorporated into a pixel structure, and pixel structures may be incorporated into a display that is free of a polarizer layer.

Abstract: A method for making iridium oxide nanoparticles includes dissolving an iridium salt to obtain a salt-containing solution, mixing a complexing agent with the salt-containing solution to obtain a blend solution, and adding an oxidating agent to the blend solution to obtain a product mixture. A molar ratio of a complexing compound of the complexing agent to the iridium salt is controlled in a predetermined range so as to permit the product mixture to include iridium oxide nanoparticles.

Abstract: The present disclosure is generally related to 3D imaging capable OLED displays. A light field display comprises an array of 3D light field pixels, each of which comprises an array of corrugated OLED pixels, a metasurface layer disposed adjacent to the array of 3D light field pixels, and a plurality of median layers disposed between the metasurface layer and the corrugated OLED pixels. Each of the corrugated OLED pixels comprises primary or non-primary color subpixels, and produces a different view of an image through the median layers to the metasurface to form a 3D image. The corrugated OLED pixels combined with a cavity effect reduce a divergence of emitted light to enable effective beam direction manipulation by the metasurface. The metasurface having a higher refractive index and a smaller filling factor enables the deflection and direction of the emitted light from the corrugated OLED pixels to be well controlled.

Abstract: An image defect identification method is applied to an image analysis device with an image receiver and an operation processor. The image defect identification method divides a detection image acquired by the image receiver into a plurality of pixel groups, transforms one of the plurality of pixel groups into a distribution curve, compares the distribution curve with a reference curve, and determines an area of the detection image conforming to a specific section of the distribution curve has defect when a difference between the specific section of the distribution curve and a related section of the reference curve is greater than a predefined threshold.

Abstract: A method for manufacturing a porous membrane includes: mixing silicon carbide powders and a coagulant to form a first mixture; adding a sintering aid to the first mixture to form a second mixture; compressing the second mixture; and sintering the compressed second mixture. More particularly, the coagulant is in an amount of 1% to 3% by weight of the silicon carbide powders and the sintering aid is in an amount of 10% by weight of the first mixture.

Abstract: A method for manufacturing a porous membrane includes: mixing silicon carbide powders and a coagulant to form a first mixture; adding a sintering aid to the first mixture to form a second mixture; compressing the second mixture; and sintering the compressed second mixture. More particularly, the coagulant is in an amount of 1% to 3% by weight of the silicon carbide powders and the sintering aid is in an amount of 10% by weight of the first mixture.

Abstract: A light-emitting device with multi-color temperature and multi-loop configuration is provided. The light-emitting device may include a substrate, multiple light sources disposed on the substrate, a light-emitting unit covering the light sources, a first circuit and a second circuit. Each light source may be configured to emit a respective primary radiation. The light-emitting unit may include multiple loops, each of which covering at least one of the light sources. Each loop may be adjacent to and in contact with at least another loop. A first number of the light sources covered by one or more odd-numbered loops of the loops may be electrically connected to the first circuit. A second number of the light sources covered by one or more even-numbered loops of the loops may be electrically connected to the second circuit.

Abstract: A light emitting module including an electrode substrate and a plurality of light emitting diodes is provided. The electrode substrate includes a carrying surface, and further includes a first joint portion and a second joint portion that are located at opposite ends of the electrode substrate respectively. The first joint portion includes a first through hole or a first notch. The plurality of light emitting diodes is disposed on the carrying surface of the electrode substrate, wherein the plurality of light emitting diodes is arranged along a long side direction of the electrode substrate, and is electrically coupled to the electrode substrate.

Abstract: A light-emitting device with multi-color temperature and multi-loop configuration is provided. The light-emitting device may include a substrate, multiple light sources disposed on the substrate, a light-emitting unit covering the light sources, a first circuit and a second circuit. Each light source may be configured to emit a respective primary radiation. The light-emitting unit may include multiple loops, each of which covering at least one of the light sources. Each loop may be adjacent to and in contact with at least another loop. A first number of the light sources covered by one or more odd-numbered loops of the loops may be electrically connected to the first circuit. A second number of the light sources covered by one or more even-numbered loops of the loops may be electrically connected to the second circuit.

Abstract: A light-emitting device with multi-color temperature and multi-loop configuration is provided. The light-emitting device comprises a substrate, multiple light sources disposed on the substrate, and a light-emitting unit covering the light sources and at least a portion of the substrate. Each of the light sources is configured to emit a respective primary radiation. The light-emitting unit comprises multiple wavelength conversion components, each of which may include a respective fluorescent material. Each wavelength conversion component emits a respective converted radiation, upon absorbing a portion of the primary radiation from one or more of the light sources, and mixes the respective converted radiation with a portion of the primary radiation from the one or more of the light sources that is not absorbed to form a respective mixed radiation. Each wavelength conversion component is adjacent to, and at least partially contacts, at least another one of the wavelength conversion components.

Abstract: A lighting emitting diode (LED) device includes a first adjust module and a second adjust module. The first adjust module includes at least one first LED and has a first internal impedance having a first characteristic curve. A range covered by the first characteristic curve includes a first incomplete conduction region and a first conduction region. As the current increases from zero value and up, the first internal impedance decreases exponentially in the first incomplete conduction region, is approximately linear in the first conduction region. The second adjust module includes an impedance-providing component and an electronic component coupled in series. The second adjust module is coupled in parallel with the first adjust module. The second adjust module has a second internal impedance having a second characteristic curve. The first characteristic curve and the second characteristic curve match one another.

Abstract: A light-emitting device with multi-color temperature and multi-loop configuration is provided. The light-emitting device comprises a substrate, multiple light sources disposed on the substrate, and a light-emitting unit covering the light sources and at least a portion of the substrate. Each of the light sources is configured to emit a respective primary radiation. The light-emitting unit comprises multiple wavelength conversion components, each of which may include a respective fluorescent material. Each wavelength conversion component emits a respective converted radiation, upon absorbing a portion of the primary radiation from one or more of the light sources, and mixes the respective converted radiation with a portion of the primary radiation from the one or more of the light sources that is not absorbed to form a respective mixed radiation. Each wavelength conversion component is adjacent to, and at least partially contacts, at least another one of the wavelength conversion components.

Abstract: A backing sheet for a flexographic printing plate and a method for manufacturing the backing sheet are provided. The method includes the steps below. A flexible base plate is provided, and an adhesive is coated thereon. The adhesive includes a resin, a photo initiator and a photocurable compound. A first exposure is then performed so as to convert the adhesive to an adhesive layer, in which the conversion rate of the unsaturated groups of the adhesive layer is in a range of 10 to 65%. The backing sheet manufactured by the above-mentioned method is also provided.